Apparatus for cleaning tin plates.



W. G. MOOREx APPRATUS FOR CLEANING TIN PLATES,

APPLIACAHON FILED1ULY27.1914.`

Pateted May 4, 1915.

iol

WILLIAM GEORGE MOORE, OE WARREN, OHIO, ASSIGNOR TO THE AETNA FOUNDRY AND MACHINE COMPANY, 0F WARREN, OHIO.

Specification of Letters Patent.

Patented May 4i, 1915.

Application filed :any 27, 1914. serial No. 853,395.

To all whom t may concern Be it known that I, WILLIAM GEORGE MOORE, a citizen of the United States, residing at Warren, in the county of Trumbull and State of Ohio, have invented certain new` anduseful Improvements in Apparatus for Cleaning Tin Plates, of which the following is a specification.

The invention relates to the means vemployed for circulating the material used in cleaning tin plates after they leave the bath. It is well known to those familiar with the art of making tin plates, that it is necessary to clean the plates after they are extracted from the tinning bath, owing to the extraneous matter that adheres to said plates. It is also desirable to cool the plates before they pass to the cleaning rolls. The cleaning medium commonly used consists of a mixture, the .principal ingredients ofv which are coarse bran and a light oil,

-this is deposited on the rolls and plates as they are passed through .the cleaning roll mechanism. It is brushed oif by said rolls into hopper, and is used over and over again, the same batch being utilized in the cleaning of a large number of plates. The

common practice is to carry the mixture from the hopper by means of an endless bucket-chain elevator to a point above the cleaning roll mechanism, and discharge it through a chute onto the rolls. In order to accomplish the desired result, in the method now in common use, it is necessary to employ' mechanism comprising coperating elements that are, expensive to install and'to keep in repair, in comparison to the installation and up-keep of the improved apparatus.

The objects of this invention areithe provision of economical, durable and efficient' means for effecting a free circulation of the cleaning material` andthat will reduce the y expense of installation and up-keep'to a minimum by the simplicity of construction of the coperative elements.

A further object of the invention is to provide means for cooling the plates before they pass to the rol-ls, and also to furnish better' ventilation to the operator.

To facilitate the understanding of the invention, the accompanying drawings lare made a part of this specification. similar characters of reference being used to designate similar parts throughout the description and' in the several igures of the drawings.

In thedrawings Figure l is a vertical section through the table in direction of arrow :L' Fig. Q showing the improved apparatus in elevation. Fig. 2 is a side view, showing the relative position of the apparatus to the cleaning roll mechanism. Fig. 3 is a plan of the upper drum, and Fig. Jr is a section on line H, Fig. l. i Y

Tl e apparatus is preferably constructed of sheet metal of suitable gage for stability, and comprises a hopper l, adapted to be located beneath the cleaning roll mechanism 2. The hopper 1 is' in open communication with the interior of a fan housing 3,in which is an exhaust fan 3a. The fan is driven in the direction of arrow a, by any well known means, as illustrated in the drawings it is 'driven from a power shaft and pulley (not shown) through the medium of the belt 5 and the pulley 5, thus the function of the fan 3a is to exhaust from the hopper 1. A conductor Je provides an outlet from the fan housing 3, this conductor extends upward and is in `open communication with the interior of a drum G located at a predetermined suitableelevation above the cleaning table and roll mechanism. The conductor 4f has an oblique connection with the drum G, for the purpose hereinafter de scribed. The lower or depending extension 6a of the drum (i is in the form of a truncated ho`llow cone, terminating in the neck (ib, which in turn is in openconnection with a distributing chamber (Se. The distributing chamber is tapered down to a more orless narrow discharge opening (I located in juxtaposition to the cleaning rolls.

In operation, the hopper l is charged with the cleaning mixture, and the function of the fan draws the said mixture into the fan housing, from whence it is driven upward and obliquely into the drum (i. The oblique entrance into the drum under a forced. draft imparts a swirling motion to the lnixture as it passes downward through the neck 6b into the distributingchamber 6, thereby causing a. uniform discharge onto the rolls and plates through the opening 6d. The cleaning rolls brush the mixture off of the plates and it is deposited into the hopper l,

from l whence the operation is repeated. Thus it will readily be seen that a continuous free circulation of the cleaning mixture maybe kept up `for any desired length of time, orl until said mixture becomes surcharged with the extraneous matter adhering to the plates when they are taken from the bath. A

Exhaust Vfrom the drum 6 is utilized for cooling and Ventilating purposes by means of the conductor 7, being in open connection with the top of the chamber in the drum 6. The f'conductor 7 can be extended to any desired point to discharge the air onto the plates, thereby cooling them and at' the same time reducing the temperature in proximity to the operator. ,A v

The' apparatus is anchored or supported by suitable hangers and braces not shown in the drawings, but which are made to .coni form to the existing conditions of the structure in which it is installed.

The comparative Weight,compactnes's, and simplicity of 'construction ofthe improved apparatus are valuable factors from the standpoits'of economy and durability.

The apparatus herein described land illus- Qtrated in thefdrawings is-a simple 'embodiment of the invention, but the relative ar.-

ran-gement and the A detailsv of construction may vary more orless without departing from the nature of the invention scope of the claims.

ters Patent .is- .l 1'. In apparatus for the purpose described,

aho'ppe'r adapted to be located beneath thel cleaning roll mechanism,e`xhaust means connected with-v said hopper, an outlet conduc-A' tor from said exhaust, an elevated drum, loblique connection between said drum .and the outlet conductor, said drum being provided or the A n l f Connecting member to the chamber being at What I claim and desire to secure by Letf-j` 3. In apparatus for the purpose described,- a hopper adapted to be located beneath theY cleaning roll mechanism, exhaust means' connected 'with saidV hopper, a conductor extending upward from-said exhaust, an ele--` 1' vated drum, oblique connection from the upper terminal ofl the conductor .to the drum,

`a distributing chamber located below th'e drum, a tapered connecting member between the drum and-the distributing chamber, said4 4 i distributing chamber bein provided with a dischargeopening adapte to discharge onto the rolls.A 4. In apparatus for the purpose described,

the combination of a hopper located belowl the cleaning roll mechanism, exhaust means connected with said hopper, an elevated circular" receiving chamber, a connecting member between the exhaust means and the' receiving chamber, the. entrance from the an angle to vthe .radius of said chamber, a distributing and discharge member located below the receiving chamber, and a tapered connecting'member between said chamber and the distributing and discharge member.

' WILLIAM GEORGE MOORE. -Witnesses f QJ. A. SNYDER,

'CRAs RNE. 

